Abstract: A safety razor having one or more blades seated between a cap and guard, said guard cap and guard having a comb-like configuration in which a comb-like moulding of a mixture of polyethylene oxide and a structural polymer, such as polystyrene, is positioned between the teeth of the comb-like cap portion, the teeth of the polyethylene oxide-containing moulding being narrower than the space between the teeth of the cap portion so that the blade unit can flex concavely.

Abstract: A machine for removing oil, dirt and grinding debris from a metal surface comprises a plurality of wash, rinse and dry stations separated to prevent contamination carryover from one station to the next. Razor blades in stacks are passed through the stations, the stacked blades being mounted on rods supported by a fixture and the nozzles or jets within the machine being so oriented as to cause a riffling of the blades due to water or air pressure. A purified water rinse and preferably an aqueous cleaning solution are employed in the machine and are circulated through the stations by a flow system which provides efficient and economical usage of the cleaning solution and rinse materials.

Abstract: In or for use in a razor blade unit having two parallel blades (14) and an interposed spacer (15), a flexible spacer having spaced transverse ribs with the ribs on one side offset from the ribs on the other side.

Abstract: An interproximal brush for carrying on the person has an elongated one piece body member of elastomeric material forming a planar surface disposed between two leg members from which a substantially rigid boss extends for supporting a brush member. A plurality of hinges are formed in the body member at either side of the boss and the oppositely extending leg members are folded one adjacent the other and attached for slidable movement relative to one another. The planar surface is disposed transverse to the direction of relative movement of the leg members and rotates to move the brush from a position in alignment with the direction of movement of the leg members to a position forming an angle with the direction of movement of the leg members, when the leg members are moved relative to one another. The one piece body member may also be made foldable in the opposite direction to encase the brush within the leg members, or a bumper may be provided for supporting the planar surface when the brush is so rotated.

Abstract: A method of manufacturing a dispenser for depositing a liquid material onto a print medium wherein a circular tube having a substantially uniform wall thickness is formed of moldable plastic material. The tube is placed in a mold cavity having a portion for receiving the tube in interfitting engagement and an enlarged cavity portion extending outwardly from the wall of the tube. Pressure is applied to the internal walls of the tube with the tube in plastic flow condition to expand the tube walls into the cavity forming a bulbous portion having a wall thickness less than the tube uniform wall thickness to provide a squeezable portion of greater flexibility than the remainder of the dispenser body.

Abstract: A writing instrument includes an advance-retract mechanism for projecting the writing tip from within the barrel for employment of the writing instrument, and retracting the tip to a point within the barrel, when the writing instrument is not in use. A plunger assembly includes a rotatable knob which is disposed at the top of the barrel and is interconnected to a finger which contacts the cam surface of a slidable actuator. Rotation of the knob in one direction advances the writing tip from within the barrel and opposite rotation of the knob is effective to retract the writing tip into the barrel.

Abstract: A hand operated device for transferring an adhesive film from a carrier tape to a substrate is provided with a feed spool containing the carrier tape, and a take-up spool mounted in a housing. The carrier tape is fed from the feed spool to the take-up spool over an applicator bar and the take-up spool is driven by the feed spool through a clutch plate to maintain a degree of tension in the carrier tape during operation of the device.

Abstract: A hand operated device for transferring an adhesive film from a carrier tape to a substrate is provided with a single spool having a portion containing the roll of carrier tape and a large diameter portion having a plurality of knurls formed on the circumference thereof. The tape is fed from the spool to contact the substrate and then fed between the knurls. A spring arm serves as a clutch by maintaining the tape in contact with the knurls but allowing slippage of the tape therebetween at a predetermined tape tension.

Abstract: An interproximal brush for carrying on the person has an elongated one piece body member of elastomeric material forming a planar surface disposed between two leg members from which a substantially rigid boss extends for supporting a brush member. A plurality of hinges are formed in the body member at either side of the boss and the oppositely extending leg members are folded one adjacent the other and attached for slidable movement relative to one another. The planar surface is disposed transverse to the direction of relative movement of the leg members and rotates to move the brush from a position in alignment with the direction of movement of the leg members to a position forming an angle with the direction of movement of the leg members, when the leg members are moved relative to one another. The one piece body member may also be made foldable in the opposite direction to encase the brush within the leg members.

Abstract: A flat clip or staple is manufactured from a continuous strip of flat sheet material in coil form by first stamping out intermediate portions of material between each of the blanks to be formed into a discrete staple while retaining the blanks in the continuous strip. The strip is then subjected to a second stamping process where each discrete staple is severed from the strip, formed into the required shape and the excess waste material removed from the continuous strip. The second stamping process is located immediately adjacent the final stapling assembly operation, such that the staples never need to be transported to the final stapling operation site in separated form.

Abstract: A fluid dispenser for use with an elongated applicator having a container with a reservoir portion and a cylindrical neck portion, a tubular insert fabricated of softer material than the container disposed in the neck portion for receiving the elongated applicator and a rotatable cap which engages the insert when in the sealing position. A plurality of axially disposed vanes are provided on the internal surface of the cylindrical neck portion which serve to cold form the outer surface of the softer insert and become embedded in the insert to prevent rotation of the insert when the cap is removed.

Abstract: Apparatus for removing a marking from a stratum surface comprises a pellucid film in the form of a heat softenable polymeric material to be placed over a marking and a source of light energy for irradiating the marking and film to heat the marking and soften the polymeric material to thereby transfer the marking to the film. The apparatus in the form of a pen type implement provides means for energizing the light source and thereafter moving the pellucid film in single operation.

Abstract: A hand operated device for transferring a film from a carrier tape to a substrate is provided with a planar surface on its bottom wall, having a pair of laterally disposed flanges extending outwardly from the side walls, the side walls forming a hand gripping surface. An applicator bar over which a carrier tape is fed is spring biased downwardly to a point below the bottom planar surface, the point being such that the force required to raise the applicator bar to the plane of the planar surface is equal to the force required for laydown of the film onto the substrate. The device is operated by movement of the device over the substrate with said planar surface in contact with the substrate.